<template>
  <div class="cartcontrol">
    <transition name="move">
      <div v-show="cartDecreaseShow" class="cart-decrease" @click.stop.prevent="decreaseCart">
        <span class="inner icon-remove_circle_outline"></span>
      </div>
    </transition>
    <div class="cart-count" v-show="cartDecreaseShow">{{food.count}}</div>
    <div class="cart-add icon-add_circle" @click.stop.prevent="addCart"></div>
  </div>
</template>

<script>
  export default {
    name: 'HomeCartControl',
    props: {
      food: {
        type: Object
      }
    },
    computed: {
      cartDecreaseShow() {
        return this.food.count
      }
    },
    methods: {
      addCart(event) {
        if (!event._constructed) {
          return
        }
        if (!this.food.count) {
          this.$set(this.food, 'count', 1)
        } else {
          this.food.count++
        }
        // this.$emit('cartDrop', event.target)
        // this.$parent.drop(event.target)
        this.$store.commit({
          type: 'initBallEle',
          el: event.target
        })
        this.$root.$emit('add_cart')
      },
      decreaseCart(event) {
        if (!event._constructed) {
          return
        }
        if (this.food.count) {
          this.food.count--
        }
      }
    }
  }
</script>

<style lang="stylus" scoped>
  .cartcontrol
    font-size 0
    .cart-decrease
      display inline-block
      padding 6px
      transition all 0.4s linear
      .inner
        display: inline-block
        line-height: 24px
        font-size: 24px
        color: rgb(0, 160, 220)
        transition: all 0.5s linear
      //只需写进入时的状态和离开完成后的状态
      &.move-enter, &.move-leave-active
        opacity: 0
        transform: translate3d(24px, 0, 0)
        .inner
          transform: rotate(180deg)
    .cart-count
      display inline-block
      vertical-align top
      width 12px
      padding-top 6px
      line-height 24px
      text-align center
      font-size 10px
      color rgb(147, 153, 159)
    .cart-add
      display inline-block
      padding 6px
      line-height 24px
      font-size 24px
      color rgb(0, 160, 220)
</style>
